The way you pick up stitches and seam the edges can also be different. They both look nice, very slightly different, and are done differently. It's just a personal preference. You may even prefer one way for open edges, and the other way for seams. They can both work well for both; it really just depends on what you like.
Maybe "controversial" is too strong a word. People do tend to be die-hards, though, either always slipping, or always not!
KnittingHelp Queen Bee
It is not because things are so difficult that we do not dare; it is because we do not dare that they are difficult.